Intro to Modulo

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| By Thames
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Thames
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Quizzes Created: 7288 | Total Attempts: 9,526,473
| Questions: 10 | Updated: Nov 12, 2025
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1) What is 25 mod 7?

Explanation

25=7×3+4.

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About This Quiz
Intro To Modulo - Quiz

What happens when numbers don’t divide evenly? That’s where modulo comes in! In this quiz, you’ll explore what “mod” really means, practice finding remainders, and try simple problems like a mod n. Take this quiz to build your foundation in modular arithmetic and get confident working with remainders.

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2) Compute 40 mod 9.

Explanation

40=9×4+4.

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3) What is 19 mod 6?

Explanation

19=6×3+1.

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4) If 22 ÷ 4 = 5 remainder r, what is r?

Explanation

22=4×5+2.

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5) Find 100 mod 12.

Explanation

100=12×8+4.

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6) Which is the same as 29 mod 10?

Explanation

29=10×2+9.

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7) What is 81 mod 9?

Explanation

81 is a multiple of 9 → remainder 0

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8) Find 73 mod 6.

Explanation

73=6×12+1.

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9) What is 17 mod 5?

Explanation

17=5×3+2. The remainder is 2.

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10) Compute 55 mod 8.

Explanation

55=8×6+7.

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What is 25 mod 7?
Compute 40 mod 9.
What is 19 mod 6?
If 22 ÷ 4 = 5 remainder r, what is r?
Find 100 mod 12.
Which is the same as 29 mod 10?
What is 81 mod 9?
Find 73 mod 6.
What is 17 mod 5?
Compute 55 mod 8.
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